I'm running Windows 8.1 on a computer where I am the sole user and admin. I cannot seem to access many directories. For example, when I try to open the folder it says: When I try to change the security settings of that directory for myself, it says: How can I receive all permissions on all directories (including all subfolders and their subfolders etc.) and all files on all hard drive partitions and on an external hard disk drive? I have used computers for years and I won't accidentally delete system files.